22 Mar '13, 9pm

Writing new firmware for a handheld radio

Writing new firmware for a handheld radio

When playing around with a cheap, handheld, dual-band radio, [Lior], a.k.a. [KK6BWA], found a schematic for a similar and even cheaper radio. He realized the programming pads were very accessible and the dev tools for the radio’s microcontroller were available from the manufacturer. After these discoveries, there really was only one thing to do: write new firmware for a $40 radio , and making a great tool for playing around in the 2 meter and 70 cm bands. The instructions for reflashing the firmware on this radio only require an Arduino and a handful of miscellaneous components. [Lior]‘s new firmware for the uv3r radio isn’t quite finished yet, but he plans on adding some really impressive features. Things like a better UI for a four-button radio, a mode for tracking satellites, a digital mode, and a computer-controlled mode are all possible and on [Lior]‘s project wishlis...

Full article: http://hackaday.com/2013/03/22/writing-new-firmware-for-a...

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